<?php
/**
 * Created by PhpStorm.
 * User: robin
 * Date: 1/10/16
 * Time: 11:28 PM
 */

namespace Luticate\Utils\Business;

use Carbon\Carbon;

class LuStringUtils
{
    public static function stringSnakeToCamelCase($string, $capitalizeFirstCharacter) {
        $str = preg_replace_callback("/_[a-zA-Z]/", function($matches)
        {
            return strtoupper($matches[0][1]);
        }, $string);
        if ($capitalizeFirstCharacter)
            $str[0] = strtoupper($str[0]);
        return $str;
    }

    public static function arraySnakeToCamelCase($array)
    {
        if (!is_array($array))
        {
            return $array;
        }
        $camelCase = [];
        foreach ($array as $key => $value)
        {
            $camelCase[self::stringSnakeToCamelCase($key, true)] = self::arraySnakeToCamelCase($value);
        }
        return $camelCase;
    }

    public static function convertJsonString($json)
    {
        $array = json_decode($json, true);
        return self::arraySnakeToCamelCase($array);
    }

    public static function parseDate($str)
    {
        try {
            return Carbon::parse($str);
        } catch (\Exception $e) {
            return null;
        }
    }

    public static function endsWith($haystack, $needle) {
        return $needle === "" || (($temp = strlen($haystack) - strlen($needle)) >= 0
            && strpos($haystack, $needle, $temp) !== false);
    }

    public static function startsWith($haystack, $needle) {
        return $needle === "" || strrpos($haystack, $needle, -strlen($haystack)) !== false;
    }
}